Boat lifts uneven under acceleration

Draft

Cadet
Joined
Jun 11, 2009
Messages
7
I have a small 12 foot livingston with a 15 hp honda 4 stroke. At rest the boat is balanced but under accelleration and at top speed the right side of the boat is higher. I know it has something to do with the engine, but I check measurement and everything is fine. what else could it be?
 

Home Cookin'

Fleet Admiral
Joined
May 26, 2009
Messages
9,715
Re: Boat lifts uneven under acceleration

Shift your ballast to starboard (i.e. slide your fat butt to the right)
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,088
Re: Boat lifts uneven under acceleration

Ayuh,... try changing the trim....
 

david_r

Lieutenant Junior Grade
Joined
Aug 11, 2008
Messages
1,118
Re: Boat lifts uneven under acceleration

have you measured to make sure the engine is exactly in the middle of the transom?........... a little goes a long way, especially in a small boat.
 

Draft

Cadet
Joined
Jun 11, 2009
Messages
7
Re: Boat lifts uneven under acceleration

thats what I do now, I shift my butt to the right. lol

I'll triple check the measurments to see if its exactly centered.
 

puddleboater

Seaman Apprentice
Joined
Oct 5, 2009
Messages
38
Re: Boat lifts uneven under acceleration

thats what I do now, I shift my butt to the right. lol

I'll triple check the measurments to see if its exactly centered.

If the motor is centered correctly, check if your outboard has a torque tab underneath the ventilation (aka cavitation) plate. It looks like a small skeg. If you have it, they are typically adjusted by loosening a screw. You can fiddle with it by rotating either left or right, to compensate for the prop torque.

Another trick I've seen and read about, is installing a trim tab on your transom (on the affected side), to adjust the pitch and running attitude of your boat. I'm not referring to the hydraulic tabs; there used to be fixed trim tabs available years ago and they might still be around today.

If all else fails, perhaps you can also shift your starting battery or fuel tank to the affected side. :D

Good luck!
 

wizbang 13

Seaman Apprentice
Joined
Oct 17, 2009
Messages
40
Re: Boat lifts uneven under acceleration

Try trimming up one hole. It is probally the port being hauled down. not stb. going up.
 
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